Mid-Holocene soil water and vegetation in the Xi'an area of the southern Chinese Loess Plateau

doi:10.1016/j.geoderma.2020.114802

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	Mid-Holocene soil water and vegetation in the Xi'an area of the southern Chinese Loess Plateau
	Yue, Da-Peng 3; Zhao, Jing-Bo 1,2; Ma, Yan-Dong 5; Cao, Jun-Ji 1; Li, Yan-Hua 3; Ma, Ai-Hua 3; Liu, Xiu-Ming 4
刊名	GEODERMA
	2021-02-01
卷号	383 页码:9
关键词	Mid-Holocene palaeosol Palaeo-rainfall Palaeo-vegetation Palaeo-soil water Palaeo-hydrologic cycle
ISSN号	0016-7061
DOI	10.1016/j.geoderma.2020.114802
通讯作者	Zhao, Jing-Bo(zhaojb@snnu.edu.cn) ; Ma, Yan-Dong(mayandongemail@163.com)
英文摘要	This paper investigates mid-Holocene palaeo-vegetation and soil water in the Xi'an area of the southern Chinese Loess Plateau (CLP). A well-dated (8.5-6.0 ka BP and 5.0-3.1 ka BP) loess-palaeosol (unit S-0) was logged, sampled and analyzed at four sites in the Xi'an area of the southern CLP, from which we report soil micromorphological (type and occurrence of root pores), particle size and geochemical data (CaCO3 and Sr concentration) to: (i) infer changes in soil water content, (ii) infer the limits of gravity water and the types of hydrologic cycle, and (iii) reconstruct the palaeovegetation. Numerous woody plant root holes were identified (2-4 mm diameter) within the illuvial horizon underlying palaeosol S-0, the morphology of which is consistent with those produced by woody plants. The clay-rich argillic horizon of palaeosol S-0 was found to contain high concentrations of kaolinite, which in concert with the geochemical indices, indicates that soil gravity water attained a depth of 2.2-2.8 m, whilst soil water content was similar to 20-25%. This implies that pedogenic processes at this site were more intense during the mid- compared to late Holocene loessic soils elsewhere on the CLP, and ultimately attests to relatively wet climatic conditions (e.g. up to 800 mm yr(-1) rainfall), the hydrologic cycle type of precipitation-soil water-groundwater, and the vegetation of deciduous broad-leaved forest. We propose that combined analyses of root-channel morphology and mobile element geochemistry can be used to infer changes in palaeo-hydrology and ultimately, the strength of the Asian Summer Monsoon.
资助项目	National Natural Science Foundation of China[41772180] ; National Natural Science Foundation of China[41930641] ; National Natural Science Foundation of China[41901034] ; Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, China[KLACP201904] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1713] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1847]
WOS关键词	MILLENNIAL-SCALE ; ASIAN MONSOON ; HOLOCENE ; PALEOSOL ; MOUNTAINS ; STRENGTH ; CLIMATE ; BASIN
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000590747800032
资助机构	National Natural Science Foundation of China ; Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, China ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/15618]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Zhao, Jing-Bo; Ma, Yan-Dong
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 3.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Shaanxi, Peoples R China 4.Fujian Normal Univ, Sch Geog, Fuzhou 350000, Fujian, Peoples R China 5.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yue, Da-Peng,Zhao, Jing-Bo,Ma, Yan-Dong,et al. Mid-Holocene soil water and vegetation in the Xi'an area of the southern Chinese Loess Plateau[J]. GEODERMA,2021,383:9.
APA	Yue, Da-Peng.,Zhao, Jing-Bo.,Ma, Yan-Dong.,Cao, Jun-Ji.,Li, Yan-Hua.,...&Liu, Xiu-Ming.(2021).Mid-Holocene soil water and vegetation in the Xi'an area of the southern Chinese Loess Plateau.GEODERMA,383,9.
MLA	Yue, Da-Peng,et al."Mid-Holocene soil water and vegetation in the Xi'an area of the southern Chinese Loess Plateau".GEODERMA 383(2021):9.